All posts by wpadmin84

Recently i envisioned of building a pocket sized weather station using a Raspberry Pi Zero computer. My inital design goal had the following list of features, that should be incorporated into this device;

Indoor temperature measurement

Outdoor temperature measurement

Indoor humidity measurement

Atmospheric pressure measurement

Disconnected Operation – Independent of the Internet

Built-in realtime clock

Battery powered

In order to accomplish the design goals, ive decided to use the following hardware;

Ive decided to use Node.js to run a minimalistic web server so that i can view sensor readings in a dashboard layout. The Node.js script would also log the sensor readings to CSV Files.

Final Hardware layout can be seen from the below photos,

I have soldered everything on a double sided perf board. furthermore i have added a female header to plug the ds18b20 temperature sensor. there are also two male headers soldered as seen in the photo above, two pins are there to provide power and the four pin connector to plug-in a USB to Serial device to manage the device in case the wifi didnt work. I will elaborate on the software setup of the device in part 2 of this series.